Shuttle-checking means for looms.



No. 76'9,179. PATBNTED SEPT. 6, 1904'.

' J. NORTHROP.

SHUTTLE CHECKING MEANS FOR LOOMS.

APPLICATION FILED MAR. 7. 1904 N0 MODEL.

I l: ulmmulnmm I UNITED STATES Patented September 6, 1904.

PATENT ()FFI E.

JONAS NORTHROP, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COMPANY,OF HOPEDALE, MASSACHUSETTS, A CORPO- RATION or MAINE.

SHUTTLE-CHECKING MEANS FOR LOOMS- SPECIFICATION forming part of LettersPatent N 0. 769,179, dated September 6, 1904.

' Application filed March '7, 1904. Serial No. 196,803. (No model.)

To all whom it may concern;

Be it known that I, J ONAS NoRTHRor, a subject of the King of GreatBritain, and a resident of Hopedale, county of Worcester, State ofMassachusetts, have invented an Improvement in Shuttle-Checking Meansfor Looms, of which the following description, in connection with theaccompanying drawings, is a specification, like numerals on the drawingsrepresenting like parts. Y

This invention has for its object the pro duction of novel, simple, anddurable shuttlechecl'ring means for looms whereby the speed of theshuttle entering the shuttle-box is efliciently checked, theconstruction and arrangement being such that a relatively largefriction-surface is presented to contact with the shuttle.

The' present embodiment of my invention comprehends, broadly, aflexible, elastic, or spring binder fixedly held at one end and having aportion thereof in the path of and to be engaged by theinooming shuttle,the inherent elasticity of the binder, with its flexibility, causing itto conform to a considerable extent to the contour of the shuttle, tothereby present an effective friction-surface.

The novel features of my invention embodied in one practical formthereof 'will be fully described in the subjoined specification, and

. particularly pointed out in the following claims.

Figure 1 is a top or plan view, partly broken out, of one end of aloom-lay having a shut- .tle-box thereon and with one practicalembodiment of my invention in operative rela- Fig. 2 is a rear elevationof the mechanism shown in Fig. 1. Fig. 3 is a lefthand end elevation ofthe lay and parts thereon shown in Figs. 1 and 2, and Fig. 4 is a planview of the binder audits holding device.

The lay 1, having a shuttle-box thereon comprising a fixed front plate2, top or cover plate 3, and back wall 4, provided with a rearwardextension 5 to support the free end of the binder, and the protectormechanism, in-

cluding a protector-shaft 6, controlled by a construction and operate inthe usual manner.

In accordance with my invention as herein embodied the binder 10 is madeof a flexible, elastic, or spring metal strip having a bend or swell 11near its inner end, the binder being extended beyond the swell at 12 topro.- ject behindthe back wall 4 of the shuttle-box, said wall servingas a stop to limit inward movement-of the binder, as shown in Fig. l.The binder-finger 9 cooperates with the free end of the binder,substantially in usual manner, to control the operation of the protectormechanism.

I may use the binder without any facing other than the polishedsurfacethereof; but I prefer to use a non-metallic facing 13, Fig. 1, ofleather or other suitable material, presenting a good friction-face, thefacing being attached to the binder in any convenient man- The holderhas an elongated front face against which the outer end of "the binderis laid and secured in place by'a bolt 17 and nut 18, so that when thenut is set up and the holder 14 clamped'in position the binder will befixedly held at its outer end, as shown in Figs. 1 and 4. When theincoming shuttle strikes the swell 11, the inner end of the binder isthrown outward, owing to ,the flexibility of the binder,

against the resistance of its own spring or resiliency primarily, towhich is added in a much less degree the resistance of theprotector-spring 7. As the shoulder of the shuttle passes beyond thebinder-swell the resiliency and flexibility of the binder combine tomake the binder conform very considerably to the contour of the shuttle,presenting an extended friction or checking surface thereto.

Instead of only a small part of the binder contacting with the shuttle,as with the ordinary inflexible or rigid binder, my novel binder actsthrough a considerable portion of its length upon and effectually checksthe letting oif the adjusting-screw 21 the tension of the spring-binderis increased or decreased, as desired, the inner end of the holder beingextended, as at 23,beyond the clamping stud 15 and bearing upon the backface of the binder, the face of the extension 23 being shown as slightlyconvexed, to prevent any possibility of injury to the binder.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s

1. In shuttle-checking means for looms, a flexible, elastic binderhaving a part thereof in the path of and to cooperate with an incomingshuttle, an angularly-movable holder to which one end of the binder isrigidly secured, a stop to limit inward movement of the other end of thebinder, and means to clamp the holder in fixed position.

2. In shuttle-checking means for looms, a

flexible, spring-binder to cooperate with the shuttle when boxed, anangularly-movable holder to which-one end of the binder is rigidlysecured, means operative by angular movement of the holder to vary theresistance of the binder to flexure when engaged by the shuttle, andmeans to clamp the holder in fixed position.

3. In shuttle-checking means for looms, a lay, a flexible, metallicspring-binder having a swell portion in the path of and to be engaged byan incoming shuttle, an upright stud on the lay, an angularly-movableholder mounted on said stud, and having secured to it the outer end ofthe binder, a lixed stop to limit inward movement of the opposite end ofthe binder, said holder having its face adjacent the binder elongated toact upon the binder between the stud and the stop, and thereby vary thebinder tension, means to adjust the angular position of the holder, anda device to clamp the latter in adjusted position.

at. A lay provided with a shuttle-box and having an upright headed studat the upper end, aflexible metallic spring-binder having a part thereonin the path of and to be engaged by the incoming shuttle, a holderrotatably mounted on the stud and rigidly secured to the outer end ofthe binder to restrain the same from movement, said holder having aninward extension adjacent the binder, and an arm extended dowmvardhehind the lay, an adjusting-screw in said arm to engage the lay andadjust the angular position of the holder, and means acting through thestud to clamp the holder in adjusted position, change in the angularposition of the holder acting through the inward extension thereof tovary the spring action of the binder.

5. In shuttle-checking means for looms, a flexible, metallicspring-binder in the path of and to be engaged by an incoming shuttle, anon-metallic facing for-the binder, and adjustable means to support andhold rigidly the outer end of the binder, and also to vary its tension.

In testimony whereof I have signed my name to this specification. in thepresence of two su bscribing witnesses.

JONAS NORTH ROI.

Witnesses:

FRANK E. DoDou, J r., EDWARD F. ALLEN.

